uu.seUppsala University Publications
Change search
ReferencesLink to record
Permanent link

Direct link
Optical and electronic properties of nanosized BiTaO4 and BiNbO4 photocatalysts: Experiment and theory
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Theory.
Show others and affiliations
2014 (English)In: Physica status solidi. B, Basic research, ISSN 0370-1972, E-ISSN 1521-3951, Vol. 251, no 5, 1034-1039 p.Article in journal (Refereed) Published
Abstract [en]

Nanosized BiTaO4 and BiNbO4 were prepared by the citrate method. The electronic and optical properties of BiTaO4 and BiNbO4 have been investigated by means of photo-acoustic spectroscopy (PAS), X-ray photo-electron spectroscopy (XPS), and first-principles calculations based on density functional theory. The measured valence band (from XPS) of both materials agreed well with the theoretical findings. It was also found that the calculated optical properties such as dynamical dielectric function and optical absorption spectra are in good agreement with the experimental findings. According to the absorption spectra, the absorption edges of BiNbO4 and BiTaO4 are located at 370 and 330nm, respectively. Both phases have the ability to harvest UV light and relatively high surface area to volume ratio and can be used as UV/visible light-driven photocatalysts.

Place, publisher, year, edition, pages
2014. Vol. 251, no 5, 1034-1039 p.
Keyword [en]
electronic structure, niobates, optical absorption, photocatalysis, tantalates, water splitting
National Category
Condensed Matter Physics
URN: urn:nbn:se:uu:diva-227876DOI: 10.1002/pssb.201350265ISI: 000335983000017OAI: oai:DiVA.org:uu-227876DiVA: diva2:731803
Available from: 2014-07-02 Created: 2014-07-01 Last updated: 2014-07-02Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Nisar, JawadAraujo, Carlos MoysesAhuja, Rajeev
By organisation
Materials Theory
In the same journal
Physica status solidi. B, Basic research
Condensed Matter Physics

Search outside of DiVA

GoogleGoogle Scholar

Altmetric score

Total: 185 hits
ReferencesLink to record
Permanent link

Direct link